Q. Describe Dalton Law of Partial Pressure?

Ans.

According to the Kinetic Molecular Theory, the pressure-volume- temperature relationship is the same for all gases. This is a key assumption in Dalton's Law of Partial Pressures. This law states that:

• The total pressure exerted by a mixture of gases at a constant volume and temperature is the sum of the partial pressures of the individual gases in the mixture.

In symbols, Dalton's law of partial pressures can be written for a mixture of gases as

• P_T = P_A + P_B + P_C + ...

(P_T is the total pressure of the mixture. P_A, P_B, P_C, etc., are the partial pressures of the individual gases in the mixture.)